Omron CJ1M-CPU12, Брошюра

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14
Function Specifications
Internal I/O Area (work bits) 4,800 (300 words): CIO 120000 to CIO 149915 (words CIO 1200 to CIO 1499)
37,504 (2,344 words): CIO 380000 to CIO 614315 (words CIO 3800 to CIO 6143)
These bits in the CIO Area are used as work bits in programming to control program
execution. They cannot be used for external I/O.
These bits can be
used as work bits
when not used for
the applications de-
scribed on the left.
Work Area 8,192 (512 words): W00000 to W51115 (words W000 to W511)
These bits are used as work bits in programming to control program execution. They
cannot be used for external I/O.
Note: When using work bits in programming, use bits in the Work Area first before us-
ing bits from other areas.
Holding Area 8,192 (512 words): H00000 to H51115 (words H000 to H511)
Holding bits are used to control program execution, and maintain their ON/OFF status
when PLC is turned OFF or the operating mode is changed.
Auxiliary Area Read-only: 7,168 (448 words): A00000 to A44715 (words A000 to A447)
Read/write: 8,192 bits (512 words): A44800 to A95915 (words A448 to A959)
Auxiliary bits are allocated specific functions.
Temporary Area 16 bits (TR0 to TR15)
Temporary bits are used to store ON/OFF execution conditions at program branches.
Timer Area 4,096: T0000 to T4095 (used for timers only)
Counter Area 4,096: C0000 to C4095 (used for counters only)
DM Area 32 Kwords: D00000 to D32767
Special I/O Unit DM Area: D20000 to D29599 (100 words
×
96 Units). Used to set pa-
rameters for Special I/O Units.
CPU Bus Unit DM Area: D30000 to D31599 (100 words
×
16 Units). Used to set param-
eters for CPU Bus Units.
Used as a general-
purpose data area
for reading and
writing data in word
units (16 bits).
Words in the DM
Area maintain their
status when the
PLC is turned OFF
or the operating
mode is changed.
Index Registers IR0 to IR15
Store PLC memory addresses for indirect addressing.
Task Flag Area 32 (TK0000 to TK0031)
Task Flags are read-only flags that are ON when the corresponding cyclic task is being executed and OFF
when the corresponding task is not being executed or is in standby status.
Trace Memory 4,000 words (trace data: 31 bits, 6 words)
File Memory Memory Cards: OMRON Memory Cards with 8-MB, 15-MB, 30-MB, or 48-MB capacities can be used. (MS-
DOS format).
Item Specification
Constant cycle time Possible: 1 to 32,000 ms (unit: 1 ms)
Cycle time monitoring Possible (Unit stops operating if cycle is too long): 10 to 40,000 ms (unit: 10 ms)
I/O refreshing Cyclic refreshing, immediate refreshing, refreshing by IORF(097).
The CPU BUS UNIT I/O REFRESH (DLNK) instruction can be used to refresh CPU Bus Units (including allocated
CIO and DM Area words) when required in the program.
Special refreshing for
CPU Bus Units Data links for Control Link Units, remote I/O communications for DeviceNet Units, and other special data for CPU Bus
Units are refreshed at the following times.
During I/O refresh period or when CPU BUS UNIT I/O REFRESH (DLNK) instruction is executed.
I/O memory holding
when changing operating
modes Possible (using the IOM Hold Bit in the Auxiliary Area)
Load OFF All outputs from Output Units can be turned OFF when the CPU Unit is in RUN, MONITOR, or PROGRAM mode.
Input time constant
setting Time constants can be set for inputs from CJ-series Basic I/O Units. The time constant can be increased to reduce
influence of noise and chattering or it can be decreased to detect shorter pulses on inputs.
Operating mode setting
at power-up Possible (By default, the CPU Unit will start in RUN mode if a Programming Console is not connected.)
Built-in flash memory User program and parameter areas (e.g., PC Setup) are automatically backed up and restored.
Item Specification